Scaling a Sprite Pygame: must be pygame.surface - python-2.7

Question

code:
import pygame
pygame.init()
WIDTH = 800
HEIGHT = 480
screen = pygame.display.set_mode((WIDTH,HEIGHT))
block = pygame.sprite.Sprite()
block.image = pygame.image.load('stone.png')
newblock = pygame.transform.scale(block, (64, 64))
newblock.rect = newblock.image.get_rect()
newblock.group = pygame.sprite.GroupSingle(newblock)
newblock.group.draw(screen)
pygame.display.update()
When i try to scale the image with pygame.transform.scale it gives me this error:
Traceback (most recent call last):
File "C:/pygame/program.py", line 8, in <module>
newblock = pygame.transform.scale(block, (64, 64))
TypeError: must be pygame.Surface, not Sprite

Answer 1

The error message says it all. The first argument to pygame.transform.scale needs to be a Surface, but you pass a Sprite.
I guess you want something like:
import pygame
pygame.init()
WIDTH = 800
HEIGHT = 480
screen = pygame.display.set_mode((WIDTH,HEIGHT))
img = pygame.image.load('stone.png')
block = pygame.sprite.Sprite()
block.image = pygame.transform.scale(img, (64, 64))
block.rect = block.image.get_rect()
group = pygame.sprite.GroupSingle(block)
while True:
#TODO: event handling
group.draw(screen)
pygame.display.update()